LG U+ is using AMR-WB (Adaptive Multi Rate Wideband) voice codecs covering the 50MHz ~ 7GHz range.
Call connection times are rated from 0.25 to 2.5 seconds, or up to 20 times faster that 3G call connection times.
LG U+ is using QCI (QoS Class Identifier) technology to ensure voice performance even during traffic spikes on the network.
LG U+ plans VoLTE support for seven different handsets, including the Samsung Galaxy S3 and the LG Optimus II
http://www.upluslte.co.kr/
07-Aug-12
